Rinse the sushi rice under cold water until the water runs clear.
Combine the rinsed sushi rice and water in a rice cooker or pot. Cook according to the rice cooker's instructions or until the rice is tender and water is absorbed.
Once cooked, let the rice rest for 10 minutes. Fluff with a fork and set aside.
Preheat the oven to 350°F (175°C).
In a bowl, mix the diced salmon, mayonnaise, Sriracha, soy sauce, and sesame oil until well combined.
In a baking dish, layer the cooked sushi rice evenly at the bottom.
Spread the salmon mixture evenly over the rice layer.
Bake in the preheated oven for 20-25 minutes, or until the top is lightly golden.
Remove from oven and top with nori strips and green onions.
Sprinkle with furikake if desired, and serve warm.